Kansas City Royals vs. Seattle Mariners

In the upcoming MLB game between the Kansas City Royals and Seattle Mariners, scheduled for May 1 at 9:45PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary re

Current Probability

The Polymarket market "Kansas City Royals vs. Seattle Mariners" is currently trading at 100% YES. This means thousands of traders worldwide estimate the probability of this outcome at 100%.

These prices are generated by real capital (USDC) on the Polygon network — not by bookmaker margins. They reflect the aggregated collective judgement of informed market participants.

Why this market matters

Prediction markets like this one let informed participants put real money behind their views. Sports markets on Polymarket are characterised by deep liquidity and fast resolution. This market closes on 9 May 2026 with automatic USDC settlement.

Frequently Asked Questions

How do I trade this market? Visit PolyGram, create an account, deposit USDC, and buy YES or NO shares. Trading takes minutes.

What happens at resolution? USDC payouts are automatically processed via smart contract on Polygon — typically within minutes of the event resolving.

Is this legal? Prediction market regulations vary by jurisdiction. Only trade with capital you can afford to lose.